Researchers tested whether magic mushrooms containing psilocybin could be safely used by people with heart failure, especially those dealing with depression. Using laboratory rat heart cells, they found that extracts from Psilocybe cubensis and Panaeolus cyanescens mushrooms actually protected heart cells from damage and reduced harmful inflammation. The mushroom extracts worked similarly to standard heart medications at the tested concentrations, suggesting they may be safe for use under controlled medical supervision.